AMP SYSTEMS vs NB
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AMP SYSTEMS
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This App is only for Sterling Power. Lithium Battery Smart Monitor This app allows you to connect to all of your Lithium Ion batteries. This application is only for Bluetooth lithium batteries. FEATURES * No need for a separate battery monitor…save hundreds of dollars! * Wirelessly connect to each battery from your phone. * Access each BMS independently with multiple batteries. * Track Cycle Life on each battery. * Displays State Of Charge (SOC) percentage with circle graphic. * Display voltage, charging or discharging current, and temperature. * Easy to read gauges. * Battery Events displayed in easy to understand text.
NB
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Official app for setting up the Steamrock NB-42 Digital Barometer using NFC.
Screenshots
Verdict
The clearest difference is update cadence: AMP SYSTEMS at every 3 months against NB's every 8 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
AMP SYSTEMS ships an update every 3 months, NB every 8 months. The most recent releases landed on October 27, 2026 and November 4, 2026 respectively.
| Parameter | AMP SYSTEMS | NB |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months — better | Every 8 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 10 MB | 18 MB |
| Age rating | 4+ | 17+ |
| Developer | Sterling Power | Steamrock Inc. |
In-app purchases
AMP SYSTEMS
No in-app purchases
NB
No in-app purchases
